Not sure why this was flagged. Apple is strict and does not allow graphic adult content, famously so [1]. One of the only exceptions you'll find is Twitter/X.

Steam does allow this. But, has recently started restricting some adult content [2].

[1] https://techcrunch.com/2010/04/19/steve-jobs-android-porn/

[2] https://www.gamesindustry.biz/whats-going-on-with-steam-and-...